It does depend on what you are doing - if you are making websites both are fine (although I've seen callback hell implemented in a Node/express website before).

It does depend on what you are doing - if you are making websites both are fine (although I've seen callback hell implemented in a Node/express website before). If you have difficult scaling problems that need stateful servers and clever cross server web socket implementations like Phoenix.Presence or 2 million web socket connection on a single huge machine, Elixir with the OTP is more likely to give you tools to build this difficult to scale thing.